Spring bed-bottom



(No Model.) 2 sheets-'sheen 1. W. T. HOWE. SPRING BED BOTTOM. No.450,968. `Patented Apr. 21, 1891.

UNITED STATES PATENT OFFICE.

TILIIIAM T. IIOVE, OF KENOSIIA, VISCONSIN.

SPRING BE D-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 450,968, dated April21, 1891.

Application iiled November l2, 1884. Serial No. 147,696. (No model.)

To all whom t may concern.-

Be it known that I, WILLIAM T. llowE, of Kenosha, in the county ofKenosha, and in the State of Iisconsiln have invented certain new anduseful Improvements in Springv Bed-Bottoms; and I do hereby declare thatthe following is a full, clear, and exact description thereof.

My invention relates to improvements in spring bed-bottoms, and will befully described hereinafter.-

In the drawings, Figure l is an under side plan view of a springbed-bottom embodying my invention. Fig. 2 is a vertical longitudinalsection through the center of the same, and Figs. 3,4, and 5 aredetails.

A A indicate the sides of the bed-bottom frame, to the end bars a a ofwhich arefastened, in the usual manner, the woven spring wire-cloth B.

O C O are transverse bars, in the upper faces of which are mounted thespiral springs C C C,the upper ends of which rest against the under sideof the cloth B. The trans; verse bars C are held in position by means ofthe coiled spring-cords D D, which, together with the adjustableturn-buckle rods E and the transverse rod F, form the supports of thespiral springs C C. The spring-cords D are formed by ceiling together acertain number of wires, as shown in Figs. 4 and 5. One end of each cordis fastened to the framebar a', while its opposite end, after beingpassed through the perforation f of the transverse rod F, is returnedthrough the perforation f of the same to be fastened by the side of thefirst end at a slight distance from it equal to the distance between theperforations f and f. The portion of the cord between the saidperforations is received in a groove f2, cut, as shown, in the outeredge of the rod F. The turn-buckle bolts E are connected at suitablepoints of the rod F and at corresponding points of the frame bar a. Thetransverse bars C C are suitably slotted in their under edges, as at c oo, to receive the spring-cords D D. The upper ends of the spiral springsC C are also fastened in any suitable manner to the woven cloth B, so asto keep them from slipping to one side or the other.

When it becomes necessary to stretch the woven cloth I3, the turning ofthe turnbuckles c e in the direction desired will, by shortening thespring-cords D, raise the transverse bars C O with their springs againstthe cloth, and will thus give to this latterthe necessary tension.

I am aware that transverse rods carrying springs have heretofore beenused to support the woven cloth; but these bars have been simplyconnected in a rigid Inanner to the frame. I do not therefore claim,broadly, the stiifening-springs supported against the woven cloth bybars set transversely to the frame; but, so far as I am aware, I am thefirst to use a spring-bridge formed, as described above, to support thesaid stiffeningsprings. I may also use in place of these wirespring-cords any other metallic cords or even ropes, made either of hempor of any other suitable material, without departing from the spirit ofmy invention.

I am aware that I am not the iirst to construct a bed-bottom combining amain frame covered with a woven-wire mattress and a series of spiralsprings located beneath said mattress on transverse slats whose ends arefree from the sides of the main frame, and which slats are supported ona series of rods, wires, cables, or cords adj ustably fastened to theend bars of the main frame, and hence I do not broadly claim such aconstruction; but I believe that I am the first to support movabletransverse bars on aseries of springwire coiled cords, substantiallysuoli as I have shown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

In a spring bed-bottom, the combination, with the main frame and awoven-wire Inattress secured thereto, of a transverse loose rodintermediate between the end bars of the main frame and grooved andperforated for the reception of a series of spring-wire coiled cords, aseries of said cords, each cord being doubled and passed through thegrooves and perforations described in the transverse loose rod and withthe endsof each cord secured to one of the end bars of the main frame,transverse movable bars supported on the said series of IOO cords,Spiral springs supported on the said have hereunto Set my hand, atMilwaukee, in bars between their upper surfaces and the the county 0EMilwaukee and State of Visunder side of the Woven-wire mattress, and acousin, in the presence of two Witnesses.

seriesof adjustable rods connecting the trans- Y WILLAM T. HOW E. i 5verse loose rod with Jche mainframe, sub- Vitnesses:

stantially as set forth. S. S. STOUT,

In testimony that I claim the foregoing I H. G. UNDERWOOD.

